<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        #div_parent {
            width: 500px;
            height: 500px;
            background-color: pink;
            font-weight: bold;
        }
        
        #div_child {
            width: 200px;
            height: 200px;
            background-color: blueviolet;
            font-weight: bold;
        }
        
        .sty {
            font-size: 20px;
        }
    </style>
    <script src="demo08.js"></script>
</head>

<body>
    <div id="div_parent">
        父
        <div id="div_child">子</div>
    </div>

    <div class="sty">
        <ul>
            <li>拿铁</li>
            <li>冰美式</li>
            <li>卡布奇诺</li>
        </ul>
    </div>
    <a href="http://www.baidu.com">百度</a>
</body>

</html>